Losing on a supposed Win

For some reason, I had lost this battle despite having the overall larger points. Me and the enemy player both agreed that this was very strange, as we had both saw the counter reach 800 on the screen. But as soon it hit 800, we got booted to hangar, and I ended up losing.

Says "Combat group destroyed" which means all of your team's planes were eliminated. Was your team down to its last plane? The last plane(s) could have been destroyed right as the counter was hitting 800? Very odd timing, but I've had this happen once or twice.